This is a new simulation of a rotating disk being illuminated by a stroboscope. You can control the speed of the disk and the frequency of the stroboscope, and see how the white spot on the disk appears. You can check all the cases of stationary appearance and the slow-motion appearance.
That moment stuck with me. It showed me how powerful simulations can be in breaking down complex ideas. It’s the reason I decided to learn how to develop science simulations to make learning easier for others.
Sometimes, all it takes is one moment to change your path!
With this rich simulation, you can visualize and measure the phase difference between two sound waves using two microphones connected to an oscilloscope. Moreover, you can determine the speed of sound in air by measuring the distance between the two microphones when their waveforms are in phase, taking into account the frequency of the sound wave that is controlled by the sine wave generator.
Newton’s second law states that net force and acceleration are directly proportional, with mass as the constant of proportionality (F=ma). This experiment uses an anvil supported by air pressure to demonstrate that even when weight is counteracted, the anvil’s huge mass still requires enormous force to accelerate it from rest. A powerful illustration of the relationship between force, mass, and acceleration.
This demonstration explains conservation of linear momentum through cannon recoil. When a cannon fires a bullet, it recoils backward with much lower velocity due to its greater mass, illustrating the inverse relationship between mass and velocity. The post provides complete mathematical derivations showing that total momentum remains constant in an isolated system where net external force is zero.
I created this course and published it on my Moodle platform. Each module is comprised of SCORM package and a quiz, with an unofficial completion certificate as a template that can be costumed to the specifications of your organization. The course is tracked, and you must successfully complete each chapter to unlock the next one. The course is fully learner-centered.
The paper: Using a web-based and stand-alone oscilloscope for physics experiment during Covid-19 pandemic, Mahizah Ismail et al (2023), Phys. Educ. 58 015006, is based on the Virtual Oscilloscope simulation. This paper was authored by Mahizah Ismail, Farid Minawi, Wan Zul Adli Wan Mokhtar, Noraihan L Abdul Rashid and Ahmad K Ariffin.
The article DOI: https://iopscience.iop.org/article/10.1088/1361-6552/ac95eb
